Stove-pipe drum



(No Mode-1.)

B. D. EVANS.

STOVEA PIPE DRUM. No. 338,145. Patented Mar. 16. 1886.

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BENJAMIN DANGEL EvANs, on BYHALIA, oI-Iio.

STOVE-PIPE DRUM.

SPECIFICATION forming part of Letters Patent No. 338,145, dated March 16, 1886, Application filed September 2, 1885. Serial No. y175,956. V(No model.)

To all whom it may concern:

Be it known that I, BENJAMIN DANGEL EVANS, a citizen of the United States, and a resident of Byhalia,in the county of Union and State of Ohio, have invented certain new and useful Improvements in Stove-Pipe Drums; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure l is a perspective view of my improved heatingdrum or stove-pipe drum,with parts of the same broken away for the purpose of illustrating the construction more clearly. Fig. 2 is a vertical transverse sectional view of the same. Fig. 3 is a bottom view showing the construction and arrangement of the dampers; and Fig. 4t is a detail view, in perspective, of' the inner cylinder, having one of the heads o1" the drum attached thereto before connecting it with the outer cylinder.

The same letters refer to the same parts in all the figures.

This invention relates to heating-drums adapted to be attached to stove-pipes for the passage of the products of combustion from a stove, range, or furnace, and having for their object to increase the heating and radiating surface; and it has for its object to provide a device of this class which shall possess superior advantages in point of simplicity, dura bility, and general eiiciency.

With these ends in view the invention consists in the improved construction, arrangement, and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claim.

In the drawings hereto annexed, A designates the outer cylinder of my improved heating-drum, which is provided on diametricallyopposite sides with upwardly and downwardly extending collars B and G, whereby it may be connected with the stovepipe on which it is to be used.

D D designate the'heads or ends of the drum, which consist of iat annular plates or rings provided at their outer edges with flanges E, fitting over the outer cylinder, as will be clearly seen in the drawings. The inner cylinder,

outer cylinder.

which is designated by letter F, is of such a diameter as to iit nicelyin the openings in the said heads or ends, with which it is connected in the manner which l shall now proceed to describe.

G G are flat rings, constructed of cast-iron, and of such a dialneter as to fit nicely upon the cylinder F. These rings are provided at their inner peripheries with lugs H H, which are perforated to receive bolts or rivets I, by means of which they are secured to the said cylinder F at a distance apart which exactly corresponds with the distance between the heads of the drum, or, in other words, the length of the One of the rings or headsD is then adjusted upon one end of the said cyliuder F and secured by upsetting the end of the latter so as to form ailauge, J, overlapping the inner edge of the head D. The other head D is then adjusted upon one end of the outer cylinder, on the opposite end of which the first head having the inner cylinder, F, attached thereto, is next placed in position. One end of the inner cylinder will thus project through the opening in the head of the cylinder, against the inner side of which one of the rings G will abut, forming a firm surface over which the said projecting end may be turned or upset, so as to form a ange, J, overlapping the inner edge of the head and serving to connect all the parts iirmly together. In this manner tight joints are formed, and the device is constructed in an exceedingly simple, inexpensive, and durable manner.

The downwardlyextending collar C of the drum is provided with bearings for the damper rods or shafts L L, and also with supports O O for the two semicircular dampers N N, formed by bending a portion of the lower part of the collar in upon itself, as shown in Fig. 2. The outer ends of the rods L L are bent at an angle, so as to form handles M M, by means of which the position of the dampers can be changed at will and the draft of the stove easily regulated.

From the foregoing description, taken in connection with the drawings hereto annexed, the operation and advantages of this invention will be readily understood.

The construction is simple and inexpensive, and the device gives a greatly-increased heating and radiating surface, thereby economizing fuel.

The method of construction, as herein de- IOO pipe the lower portion of which is bent in upon itself to form supports, two rods across said pipe, the outer end of each of which is bent to form a handle, and a semicircular damper secured upon each of said rods, the outer edges of which rest upon said supports, as shown and described.

In testimony that I claim the foregoing as my own I have hereunto afxed my signature in presence of two witnesses.

BENJAMIN DANGEL EVANS.

Witnesses:

B. A. MARTIN, G. J. BALDWIN. 

